In optical-fibre communications, optical isolator can be widely used in light source, optical transmission system etc. The utility model can be used in the field of the fiber communication. The utility model mainly comprises a fiber collimator (1), a polarized light spectroscopic device (3) with an oblique, a faraday rotator (4), a one fourth wave plate (5) that has an optical axis angle of 45 degrees with the polarized light spectroscopic device (3), a full-wave plate (6) that has an optical axis angle of 65 plus or minus 15 degrees with the polarized light spectroscopic device (3), a polarized light spectroscopic device (7) with an oblique, a polarized light spectroscopic device (8) with an oblique, a faraday rotator (9) that has a different rotation temperature characteristic with the faraday rotator (4), a one fourth wave plate (10) that has an optical axis angle of 45 degrees with the polarized light spectroscopic device (8), a full-wave plate (11) that has an optical axis angle of 65 plus or minus 15 degrees with the polarized light spectroscopic device (8), a polarized light spectroscopic device (12) with an oblique and a fiber collimator (13). The utility model discloses an optical isolator that can work normally in a relatively wide range of temperature and wavelength. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Zhuhai FTZ Oplink Communications Inc filed Critical Zhuhai FTZ Oplink Communications Inc Priority to CNU032680937U priority Critical patent/CN2648708Y/en Application granted granted Critical Publication of CN2648708Y publication Critical patent/CN2648708Y/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Original Assignee Zhuhai FTZ Oplink Communications Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 赵泽雄 叶小华 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CNU032680937U Other languages Chinese ( zh) Yuan et al., Photonics Res.- Google Patents CN2648708Y - Light isolatorĭownload PDF Info Publication number CN2648708Y CN2648708Y CNU032680937U CN03268093U CN2648708Y CN 2648708 Y CN2648708 Y CN 2648708Y CN U032680937 U CNU032680937 U CN U032680937U CN 03268093 U CN03268093 U CN 03268093U CN 2648708 Y CN2648708 Y CN 2648708Y Authority CN China Prior art keywords polarised light wave plate optical axis light splitter splitter spare Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Rogers, Polarization in optical fibers (Artech House, Norwood, 2008), p. Ghatak, Polarization of light with applications in optical fibers (SPIE, Bellingham, 2011), p. This process is experimental and the keywords may be updated as the learning algorithm improves. These keywords were added by machine and not by the authors. This chapter contains the measurement and analysis of polarization-mode coupling, system performance improvement of the optical coherence domain system, dispersion effect suppression of fiber coil under test, and the diagnosis for fiber coil. The optical coherence domain polarimetry system based on white-light interferometer is a suitable instrument for characterizing the distributed polarization-mode coupling of polarization-maintaining fibers. In addition, it can help improve the wound technique, and then suppress the polarization-mode coupling. Characterization of distributed polarization-mode coupling coefficient could evaluate the quality of fiber coils. Its distributed polarization-mode coupling degrades the performance of fiber optic gyroscope on drift bias. Fiber coil wound by polarization-maintaining fiber is an important part of fiber optic gyroscope.
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